LM2940S

Name: LM2940S
Brand: NS Electronics Co Ltd
Rating: 4.5 (10 reviews)
Author: Lisleapex

Regulator

4,181 Effective Inventory

LM2940S

Effective Inventory4,181

Regulator

Manufacturer Part # : LM2940S
Package/Case: TO-263
Brand: NS Electronics Co Ltd
Product Categories : Other Regulators

Quality Assurance

All parts procured from our supply chain network undergo a rigorous incoming inspection process. This meticulous inspection ensures that the parts received by our customers are authentic and meet the required standards. Additionally, we maintain detailed records of these inspections to ensure transparency and traceability throughout the supply chain.

Certification

We have successfully obtained various certification standards and have established our own professional testing laboratory. This ensures that every product we supply to our customers meets the highest quality standards. We adhere to strict testing protocols to maintain the consistency and accuracy of our products. To ensure that our products are original and genuine, we also collaborate with reputable third-party testing facilities to conduct rigorous quality testing. Our commitment to quality extends to meeting industry, legal, regulatory, and ISO 9001:2015 requirements.

Shipping & Payment

About Shipping

We generally ship orders within a few business days through reliable shipping carriers such as FedEx, SF, UPS, or DHL. We also have support for other shipping methods. If you would like to inquire about specific shipping details or costs, please don't hesitate to reach out to us.

About Payment

We accept various payment methods, including VISA, MasterCard, UnionPay, Western Union, PayPal, and other channels.

If you have a specific payment method in mind or would like to inquire about rates and other details, please feel free to contact us.

WireTransfer

Paypal

CreditCard

WesternUnion

MoneyGram

Service & Packaging

About After Sales Service

All Parts Extended Quality Guarantee

Initiate the application within 90 days from the shipment date.

Confirm the return or exchange with our staff.

Maintain the goods in their original condition as received.

Lastly, please note that the eligibility for return or exchange of goods is subject to an assessment of the actual condition of the returned items. We will evaluate the received goods before finalizing the return or exchange process. If you have any inquiries or require further assistance regarding returns or exchanges, please don't hesitate to contact us at [email protected]

About packaging

Regarding packaging, our products are carefully packed in anti-static bags to provide ESD anti-static protection. The outer packaging is durable with secure closure. We support various packaging methods such as Tape and Reel, Cut Tape, Tube, or Tray.

Example

Tape and Reel

Cut Tape

Tube or Tray

LM2940S DataSheet

Current price plan is under preparation. Please contact our customer service team for the latest pricing information. Thank you for your understanding and support!

Interested Parts

LM2925T
NS Electronics Co Ltd
LM325N
NS Electronics Co Ltd
LM317EMPX
NS Electronics Co Ltd
LM150K
NS Electronics Co Ltd
LM337HVT
NS Electronics Co Ltd
LM2940T-10
NS Electronics Co Ltd
LP3878SD-ADJ
NS Electronics Co Ltd
Min$0.428

Price Dtls.
LM2940-12
NS Electronics Co Ltd

Rapid Quote

Please submit RFQ for LM2940S or email to us: Email: [email protected], we will contact you in 12 hours.

Quantity^*

Contact Person^*

E-mail^*

Company Name

Anything else?

LM2940S Description

The LM2940S is a Linear Voltage Regulator IC Positive Fixed 1 Output 1A TO-263 (DDPAK-3) from Bay Linear Inc, designed for reliable voltage regulation in various applications. This device features high precision and low dropout voltage, making it suitable for compact circuit designs.

Pin Details

The LM2940S is a linear voltage regulator with 4 pins for fixed output voltage regulation. It includes pins for input voltage, output voltage, and ground connections.

Pin configuration

Pin 1 (VIN): Input Voltage
Pin 2 (OUT): Fixed Output Voltage
Pin 3 (GND): Ground
Pin 4 (Tab): Tab for Heat Sink or PCB Mounting

Features

High Precision: Offers high precision voltage regulation with a typical accuracy of ±1.5%.
Low Dropout Voltage: Provides low dropout voltage, making it suitable for applications where the input voltage is close to the output voltage.

Application

The LM2940S is commonly used in systems that require fixed output voltage regulation, such as power supplies and battery-powered devices.

Where to Use:

Power supplies
Battery-powered devices
Industrial control systems
Aerospace applications

Manufacturer

The LM2940S is manufactured by Bay Linear Inc, a leading manufacturer of linear voltage regulators and other power management components.

This product was developed to meet the growing demand for high-precision and low-power voltage regulation in various industries, including aerospace, industrial control, and consumer electronics.

Packages

The LM2940S comes in a TO-263 (DDPAK-3) package, which is designed for surface-mount technology and offers a compact and efficient solution for integrating the regulator into electronic circuits.

Equivalent Parts of LM2940S

LM2941: A comparable linear voltage regulator from National Semiconductor with similar features and performance.

Specifications

The followings are basic parameters of the part selected concerning the characteristics of the part and categories it belongs to.

Product Name	LM2940S	Product Type !	Voltage Regulator
Manufacturer	Texas Instruments	Output Voltage	5V
Output Current !	1A	Input Voltage Range	7V to 26V
Dropout Voltage !	0.5V	Quiescent Current !	10mA
Package / Case	TO-263	Operating Temperature Range !	-40°C to +125°C

Datasheet PDF

Datasheets record the features, absolute maximum ratings, applications and more of the device, which benefit a lot as an overall guide to the specific application of the part.

Preliminary Specification LM2940S PDF Download

FAQs

What is LM2940S?

The LM2940S is a low dropout voltage regulator designed by Texas Instruments. It is suitable for applications requiring a stable regulated output voltage with low dropout voltage, such as battery-powered devices, automotive electronics, and portable electronic systems.

How Does LM2940S Work?

The LM2940S works by regulating an input voltage to a stable output voltage with minimal dropout. It operates as a linear voltage regulator, providing a continuous output voltage even when the input voltage is close to the output voltage. This feature makes it ideal for applications with tight voltage requirements.

How Many Pins does LM2940S have and What are the Functions of the Pinout Configuration?

The LM2940S is housed in a 3-pin SOT-223 (Small Outline Transistor) package. The pinout configuration includes:

Input: Input voltage pin.
Ground: Ground pin.
Output: Regulated output voltage pin.

What are the Pros and Cons of LM2940S?

Pros:

Low Dropout Voltage: Provides a regulated output even when the input voltage is close to the desired output voltage.
Stable Operation: Offers stable and accurate output voltage regulation for sensitive electronic components.
Thermal Shutdown Protection: Includes thermal shutdown protection to prevent overheating.
Short Circuit Protection: Incorporates short circuit protection for added reliability.
Compact Package: The SOT-223 package is space-efficient and suitable for small designs.

Cons:

Heat Dissipation: May require additional heat sinking or thermal considerations for high power applications.
Limited Current Capacity: The LM2940S has a limited current output compared to higher power regulators.
External Components: May require input and output capacitors for stable operation.

Are There Any Equivalents/Alternatives to LM2940S for Recommendation?

The LM2937 from Texas Instruments is a comparable low dropout voltage regulator.
Alternatives to the LM2940S include the LP5907 from Texas Instruments and the MIC29302 from Microchip Technology.